Viessmann VITOTRONIC 100 Installation And Service Instructions Manual page 23

System version 6
Codes must be set on every Vitotronic 100.
Required coding
01 : 2 Multi−boiler system with cascade control via LON BUS
01 : 3 Multi−boiler system with external cascade control via switching
contacts
02 : 2 Modulating burner operation
03 : 1 Oil fired operation (irreversible)
The temperature sensor on plug aJA controls the mixers of
0d : 1
downstream heating circuits
2d : 1 Only with Vitotronic 100 for boiler 1:
Shunt pump control function ON, independent of boiler
enabled/disabled
Automatic changeover
Connecting temperature sensor T1 to plug aJA
4A: 1
4b : 1 Only with Vitotronic 100 for boiler 1:
Connecting temperature sensor T2 to plug aJB
*1
If required.
(cont.)
*1
Heating system designs
*1
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